4EQM:
reference: Structural Analysis of Staphylococcus aureus Serine/Threonine Kinase PknB., Rakette S, Donat S, Ohlsen K, Stehle T, PLoS One. 2012;7(6):e39136. Epub 2012 Jun 11. PMID: 22701750

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).